Fanning-mill



(No Model.)

J. S. CONSTANT.

FANNI'NG MILL.

Patented Mar.28,1897.

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WITNESSES m: ucmms PEYERS co, wore-ma. msumarm n. r

Nrrnn rains JOHN S. CONSTANT, OF. NElV BURLINGTON, OHIO.

FANNING=MILL.

SPECIFICATION forming part of Letters Patent No. 579,258, dated March23, 1897. Application filed January 20, 1894. Renewed April 1, 1896.Serial No. 585,830. (No model.)

, and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to letters ofreference marked thereon, which form a part of this specification.

Figure 1 of the drawings is a vertical section of the machine embodyingmyinveniion. Fig. 2 is a similar View in modified form. Fig. 3 is adetail view of one of the blocks J. Fig. 4c is a similar view of theadjustable grain-stop, and Fig. 5 is a similar view of one of theholding-strips.

This invention has relation to certain new and useful improvements ingrain-cleaning machines; and it consists in the novel construction andcombination of parts, all as hereinafter described, and pointed out inthe T accompanying claims.

The invention, while applicable to many different styles and forms ofgrain-cleaners, is more especially designed as an improvement upon themachine set forth in my Patent No. 358,543, dated March 1, 1887, and hasfor its object the provision of means whereby the screens, wind-boards,and other parts may be readily removed, replaced, or adjusted and themachine adapted to different uses.

A further object consists in the provision of animproved grading-fluehaving means for a more effectual employment of the blast and which maybe readily removed and replaced to suit the different purposes of themill.

Referring to the accompanying drawings, the letter A designates theupper screen, and B the grain board thereunder, said screen and boardbeing removable. The upper end of the board B is supported upon blocksa, one at each side and rigidly secured to the shoeframe, while itslower end is supported upon the upper end of the upwardly-inclined upperflue-board O, which is also made removable, being supported at both endportions upon blocks b,-which are rigidly secured to the frame, one ateach side. Said board C is prevented from slipping downwardly by meansof longitudinal strips 0, secured one to each lateral edge of the boardand having at their rear end portions notches or shoulders d, whichengage with blocks e, secured to the frame.

D is the lower flue fioard, which is inclined upwardly, forming with theboard O the airfiue E, which by this arrangement of the boards decreasesin area from the blast-chamber E to the discharge E causing the blast tobe compressed. This lower board D is removably supported upon blocks fin the same manner as the board 0 and is held against downward movementby strips f and blocks f similar to the strips 0- and blocks a.

F designates the grading-flue, which is of somewhat similar form to thatshown in the patent above referred to, but is made to gradually increasein area from the point where the grain from the board B enters, to itsdischarge at g. The blast enters this fine at the lower end thereof fromthe flue E, and owing to this peculiar form of the flue is allowed togradually expand as it passes upwardly therethrough. The purpose of thisarrangement is as follows: The air being compressed where it enters thesaid flue F, it will strike the grain or seed at the discharge g withgreat force, scattering it and destroying its compactness, allowing theheavy grain to fall at once down through the discharge 71 onto the lowerscreen G, while the lighter grades are lifted up into the expanded partof the flue,where there is more room for the blast to handle them, theheavier seeds or grains being more perfectly weighed or suspended andthe separation more perfectly made, the lighter particles only beingcarried out at the discharge g.

In order to eilectually guard against any good grain or seeds from beingblown out at this discharge,the lower edge of said discharge is providedwith a horizontally-adjustable transverse guard-strip j, projectinginwardly into the flue. Owing to the slight curvature of the walls ofthe flue and the direction which the blast takes therein it will beapparent that this guard will effectually prevent any good seed or grainfrom being carried over, as in order to do that the grain must be liftedaround and over the guard. The inner face of the said guard is beveled,as shown at j.

On the outer end of the lower flue-board D is a deflector-strip I, whoseupper surface is beveled upwardly in such a manner as to throw the blastupwardly into the flue F, and thereby preventing it from strikingdirectly the farther wall of the said flue.

The flue E is secured to the mill by means of blocks J J, secured one toeach side por tion thereof, said blocks at their lower outer portionshaving a cut-away portion 9' which seats upon and over thesimilarly-shaped portions a,blocks K are secured to the screen-shoe by astrap 70. On the blocks J J are staples 7a 7a, which are engaged byhooks k on the shoe-frame, thus securing the flue in place in such amanner as to permit it to be readily and quickly removed and replaced.The flue also serves to hold the board B against clownward movement.

In Fig. 1 the parts are shown in position to adapt the mill for use asan air-mill; but by means of the construction described they may bereadily changed to adapt it for use as a chafling-mill, as in Fig. 2. Toaccomplish this, the screen A, board B, and the flueboards 0 and D areremoved, as is also the grading-flue F, and screens L and M aresubstituted. The upper screen L is supported at its upper end upon theblocks a and at its lower end upon a transverse rod or wire N.

The inner end of the lower screen M is supported upon the blocks 6 andits outer end upon a transverse rod or wire 0.

The improvements as above described may be readily built into manyexisting forms of mills, as well as in new mills, the arrangement of theblast and grading flue being particularly effective in producing aperfect separation, while the removability and adj ustability of theparts whereby the mill may be adapted for different uses is of greatutility.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is

1. In a grain-cleaner, the removable upper screen A, the removablegrain-board B, its supporting-blocks, the removable flue-boards G and D,their supporting-blocks, the longitudinal strips secured to the lateralportions of said boards 0 and D, and blocks on the mill engaged by thesaid strips to preventthe said boards from endwise movement,substantially as specified.

2. In a grain-cleaner, the lower flue-board D having a deflector at itsouter end portion, the upwardly-carried and gradually-expandedgrading-flue E, into which the blast is directed by said deflector, agrain-discharge at the lower portion of said flue, a grain-entranceopening above said deflector, and a transverse, adjustable guard-stripat the inner lower edge of the discharge at the upper end of said flue,substantially as specified.

3. In agraincleaner, adetachable gradingflue gradually expanded from itslower to its upper end, a lower flue-board having a deflector at itsouter end portion arranged to direct the blast upwardly into said flue,and a guard-strip at the upper discharge of said chute arranged to checkany grain carried upwardly by the upward blast, substantially asspecified.

In testimony whereof I aliix my signature in presence of two witnesses.

JOHN S. CONSTANT.

Witnesses:

J. W. MOORE, T. C. HAYDOCK, Jr.

